Composite shingle



July 20 1926.

' wmm Qua/nap Patented July 20, 1926.

UNITED STATES JAMES H. MUNRO, F PEN ARGYL, PENNSYLVANIA.

l COMPOSITE SHINGLE.

Application filed June 21,

My invention relates to roofing units of the type embodying a shingle,and the present disclosure is directed to a shingle formed of slate orother fragile material, cemented or otherwise secured to the upper sideof a backing sheet. When driving nails through the upper end portions ofslate and simllar shingles, the latter are often severely 1njured whenthe nail heads are driven tightly against their upper faces, but it isone object of my invention to provide a layer of flexible materialsecured to the upper side of the shingle to form a cushion for the nailheads and prevent them from being driven directly against the shingle,so that injury to the latter from said heads cannot occur.

A further object of the invention, is 'to confine the nailing portion oftheiragile shingle, between upper and lower lavers of 2 flexiblematerial, so that in case shank of the nail should fracture suchfracture will be sealed by A still further object is to shingle havingunique means on side to serve as a overlapping shingles thereto.

A still further object is to provide means on the upper side of theshingle for supthe shingle, said layers. provide a its upper porting theoverlapping shinglesso that the l combined thickness of such overlappingshingles and said means will give the appearance that thick shingleshave been used, y

when in reality paratively thin.

A still further object is to provide a single strip-like layer acrossthe upper side of the shingle, to constitute said cushioning means, saidshingle supporting means and the means for guiding the laying of theoverlapping 40 shin les.

ith the foregoing in view, the invention resides in the novel subjectmatter hereinafter described and claimed, the description beingsupplemented by the accompanying drawing.

Figure 1 is an upper side elevation showing one form of shingleconstructed in-accordance with the invention.

Figure 2 is a longitudinal sectional view as indicated byline 2-2 ofFig. 1.

igure 3 is a sectional view showing, a number of the shingles laid upona roof.

Figures 4, 5 and 6 are duplicates of Figs. 1, 2 and 3 with the exceptionthat they illustrate a diflerent form of construction,-Fig.'

5 being cut on line 55 of Fig. 4.

said shingles may be comthe point or guide when applying the 1923.Serial- No. 846,889.

In the form of construction shown in Figs; l, 2 and 3, the numeral 1designates a thin rectangular shingle formed of slate or other desiredmaterial. Cemented against the underside of the shingle 1, is a pieceof.

flexible roofing 2 of felt or other desired material which isco-extensive in width with the shingle and extends any desired distanceabove the upper end of the latter, as indicated at 3. A- second andrelatively small piece of similar flexible roofing material 4 has itsupper edge cemented to the outer surface of the backing sheet 2 asindicated at 5 and the the strip 4 forms a flap 6 overlying the upperend of the shingle 1 and cemented thereto. As indicated at 7, the flap.6 is preferably marked at the points where the attaching nails are to bedriven and it willbe seen that by driving flap, the upper end of theshingle 1 and conlower edge portion of the nails through said sequently,said flap forms a cushion which prevents the nail heads slate. Also,attention is directed to the fact that while there is little liabilityof the points or shanks of the nails fracturing-the shingle, if suchfracture should occur, it will be sealed by the flap and the backing 2or 2 Attention may here be directed to the fact that pliable adhesivecement is usually employed in securing the flaps and backing sheet tothe shingle and such cement will tend to seal the nail holes around thenails. Also, I may state that the flap 6 or 6*, or

from fracturing the .any other strip or layer used in its place, actsnot only as a nail head cushion, but as a guide in laying theoverlapping shingles, and the combined thickness of such shingles andthe flap, gives the appearance of thick shingles, even though thin onesmay be used.

In the constructlon disclosed in Figs. 4,

5 and 6, a relatively short backing sheet 2*.

is secured to the shingle 1 and an additional sheet 4 is cemented at 5to the projecting upper end of said sheet 2', the lower endof said sheet4 overlying and being secured to the shingle to provide a nailing flap6.

Regardless of the'exact details used, a shingle is provided which isinexpensive and light, yet 1s fire-proof and durable and will beadvantageous in every way. Excellent results are obtainable from theforms of construction herein disclosed, but it is to be understood thatthis disclosure is for illustrative purposes only and that'within thescope of the invention as claimed, changes in form, proportions, shape,etc., may be made, and if desired, a plurality of shinglesmight beprovided on a single backing.

I claim:

1. A device of the class described comprising a shingle, and a flexiblebacking for said shingle extending beyond its upper end and having aflap overlying said upper end.

2. A device of the class described comprising a shingle, a piece offlexible sheet material co-extensive in width with said shingle andextending above the latter, said material being secured to one side ofsaid shingle, and a second piece of sheet material secured to the otherside of said shingle and also secured to the first named piece ofmaterial, one of said pieces covering he upper end only of the shingle,leaving the remainder of its upper side exposed.

3. A device of the class described comprising a backing, a shinglesecured against-the lower edge portion of said backing, and a strip-likelayer of flexible material secured to the upper side of said shinglealong its upper edge portion.

4. A fragile shingle having a nailing portion confined between materialcarried by the shingle.

5. A device of the class described comprising a fragile shingle and alayer of flexible material secured to the upper side of said shingle toprevent the heads of nails driven through said layer and shingle frombeing driven against the latter.

6. A structure as specified in claim 5; said layer being of strip-likeform and extending'substantially throughout the width of the shingle toform a guide for laying additional overlapping shingles and to combinewith the thickness of such shingles in giving a thicker appearancethereto.

7. A thin shingle having means on its upper side for supportingadditional overlaptwo layers of flexible ping thin shingles, thecombined thickness of said means and the overlapping shingles serving togive the appearance of thick shingles.

8. A structure as specified in claim 7; said shingle-supporting meanshaving a straight lower edge to serve as a guide for laying theoverlapping shingles.

9. A device of the class described comprising a thin shingle, and astrip-like layer secured to the upper side of said shingle to serve as aguide for laying additional overlapping thin shingles and to support thelatter, giving the appearance that thick shingles are used.

10. As anew article of manufacture, a shingle consisting of a section ofslate and a section of felt, the felt overlapping the face of the slateat one edge only, the edge of the felt forming a guide for anothershingle placed thereon.

ll. A composite shingle made of a section of slate and a section ofwaterproof. felt overlapping the face of the shingle at one edge, thefelt. being of such length as to be engaged by the nails that secure theadjoining shingle in position so that each shingle is secured by twosets of nails.

12. A roof structure made of a series of composite shingles, whichconsist of a section of slate and a section of waterproof felt, the"felt overlapping a portion of the slate and secured thereto, one seriesof shingles being mounted upon another series, the lower edge of theslate of one series alining with the lower edge of the felt of theseries previously laid, and the joints of one series alternating with,those of another series. 7

In testimony whereof I have hereunto afiixed my signature.

JAMES H. MUNRO.

